Spring bed-bottom



J. LOKIE/ TOM. No. 244,633. Pat nted July 19,1881.

- UNITED STATES PATENT OFFICE.

JOHN LOKIE, OEDETBOIT, MICHIGAN.

SPRING BED-BOTTOM.

SPECIFICATION forming part of Letters Patent No. 244,633, dated July 19, 1881.

Application filed September 16, 1880. (No model.) i

To all whom it m ay concern:

Be it known that I, JOHN LOKIE, of Detroit, Wayne county, Michigan, have invented an Improvement in Spring-Beds, of which the following is a specification.

The nature of this invention relates to certain new and useful improvements in spring bed-bottoms and the invention consists in the peculiar eonstructionof the parts composing the same, their various combinations, and operation.

Figure l is a plan view. Fig. 2is a perspective view of the frame.

In the accompanying drawings, which form a part of this specification, A represents the upper, and B the lower, frame of the device, preferably made of wood bent into the form shown, although they may be made of any ma-. terial.

O O represent springs and braces, as shown, each pair composed of two pieces of suitable material, the ends of the upper pieces, 0, being secured to the upper frame, and the ends of the lower pieces,0, secured in like manner to the lower frame, and secured together at the center of their lengths by means of a bolt, a, which, if occasion requires, or if desired, may pass through an intervening post or block, b.

D represents double conical springs, those next the frames being secured at top and bottom thereto by staples, books, or other devices suitable for the purpose, while the rest of the springs are secured in parallel series to each other, and to those adjacent to the frame, by

. hook-links 0, so as to retain each spring in vertical position.

E E represent stays,-each formed of two pieces of suitable material, the ends of each of the upper pieces, E, being secured to the under side of the pieces (3 and to the underside of the upper frame by bolts (1, while the ends of the lower pieces, E, are each secured to the upper faces ofthe pieces 0 and to upper side of the lower frame by bolts d, and the two pieces are secured together by a bolt or rivet, a, at the center of their lengths. this construction and. arrangement of the springs O (.l and stays E E, and their connections with each other and the frame A B by the bolts d, the frames will be longitudinally and laterally braced, while, because of the elastic and flexible nature of the material of which the springs O O and staysE E are constructed,

the frames are capable of a slight vertical movement toward each other, when a weight is applied to the upper frame, A, owing to the bending and buckling of the springs and stays. The two lateral pairs of spring-braces G C, and the two longitudinal pairs ofspringbraces EE', are interposed between the frames A B, at or near the middle of said frames, so as to counterbalance the strain and secure the bracing and spring of the frames without the necessity 'of employing other sets of similar springs applied to the ends of theiframes or elsewhere-between them.

Itwill also be perceived that the ends of the springs O and E and C and E are secured to each other and to the frames by a single bolt, (1, for each pair of ends passing through the end of one of the lateral springs, the end of one of the longitudinal springs, and thence into the upperor lower frame, thereby tying securely the springs to each other and to the upper and lower frames. I

By this constructionof bottom both longitudinal and lateral bracing is secured without interfering in the slightest degree with the verticalelasticity required in spring bed-bottoms.

What I claim as my invention is-- 1. The combination,with the upper and lowor frames, A B, of the two pairs of interposed lateral springbraces U U, secured together at the'middle of their lengths, and arranged at equal distances from the transverse central line of the frames, and the two sets of interposed longitudinal spring-braces E E, secured together at the middle of their lengths, the ends of the lateral and longitudinal springbraees being secured to each other and to the frames by the bolts d, substantially as described, and for the purpose set forth.

2. The combination, with the upper and lower frames, A B, of the two pairs of interposed lateral spring-braces O G, secured together at the middle of their lengths, and arranged at equal distances from the transverse central line of the frames, longitudinal springbraces E E, having their ends secured to the lateral spring-braces G O and the frames by pins d, and springs D, substantially as described, and for the purpose set forth.

JOHN LOKIE.

Witnesses:

H. S. SPRAGUE, E. SoULLY. 

